2215771134 has 16 divisors (see below), whose sum is σ = 4435609872. Its totient is φ = 737912448.

The previous prime is 2215771121. The next prime is 2215771139. The reversal of 2215771134 is 4311775122.

It is a junction number, because it is equal to n+sod(n) for n = 2215771095 and 2215771104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215771139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162379 + ... + 175494.

It is an arithmetic number, because the mean of its divisors is an integer number (277225617).

Almost surely, 2^2215771134 is an apocalyptic number.

2215771134 is an abundant number, since it is smaller than the sum of its proper divisors (2219838738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215771134 is a wasteful number, since it uses less digits than its factorization.

2215771134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338971.

The product of its digits is 11760, while the sum is 33.

The square root of 2215771134 is about 47071.9782248420. The cubic root of 2215771134 is about 1303.6918986642.

The spelling of 2215771134 in words is "two billion, two hundred fifteen million, seven hundred seventy-one thousand, one hundred thirty-four".